Global Positioning Systems

"The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: his eyes are closed." - Albert Einstein

Glitch shows how much a lean US military relies on GPS: ‘Everything that moves uses it’

If illegal border crossers get GPS cell phones, will they find water in the desert?